SPONTANEOUS CP VIOLATION IN THE MINIMAL SUPERSYMMETRIC STANDARD MODEL AT FINITE-TEMPERATURE

被引：36
|
作者：
COMELLI, D
PIETRONI, M
机构：
[1] IST NAZL FIS NUCL,SEZ TRIESTE,I-34014 TRIESTE,ITALY
[2] UNIV PADUA,DIPARTIMENTO FIS,I-35100 PADUA,ITALY
[3] IST NAZL FIS NUCL,SEZ PADOVA,I-35100 PADUA,ITALY
来源：
PHYSICS LETTERS B | 1993年 / 306卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(93)91139-E
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We show that in the Minimal Supersymmetric Standard Model one-loop effects at finite temperature may lead to a spontaneous breaking of CP invariance in the scalar sector. Requiring that the breaking takes place at the critical temperature for the electroweak phase transition, we find that the parameter space is compatible with a mass of the Higgs pseudoscalar in agreement with the present experimental lower bounds. Possible implications for baryogenesis are discussed.
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页码：67 / 72
页数：6
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